Re: Writing a rule to trigger on a spoofed mac address

[Jack Pepper <pepperjack () afferentsecurity com>]

although the MAC addrs get saved into the snort internal data format,  
nothing in the detection engine makes those values usable by a  
detection rule.  Not that it couldn't be written, just that nothing  
exists at this time.

> From: Dawson,Scottie [mailto:scottie.Dawson () ColoState EDU]
> Sent: Tuesday, October 20, 2009 9:18 AM
> To: snort-users () lists sourceforge net
> Subject: [Snort-users] Writing a rule to trigger on a spoofed mac address
>
> Snort folks
>
> I have gotten some alerts recently on traffic triggered by "Emerging  
> Threats Trojan Bot - potential reptile commands".  When we looked at  
> the PCAP file we saw that the mac address on both ends of the  
> conversation was spoofed 11:22:33:44:55:66 and de:ad:ca:fe:ba:be.  I  
> am wondering if it's possible to write a rule that triggers on  
> either one of those mac address's?  I was reading in the snort  
> manual and I see potential reasons why this is not possible such as  
> the protocols portion of the alert (page 92).  If it is possible  
> could you guys point me in the right direction?



-- 

Framework?  I don't need no stinking framework!

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